Green Elevators: Energy-Efficient Modernization Options

Elevators account for 2-10% of a building's total energy consumption. For older systems, that number can be even higher. The good news? Modern technology offers significant opportunities to reduce both your carbon footprint and your utility bills.

Understanding Elevator Energy Use

Most elevator energy is consumed by:

• The motor and drive system (moving the cab)
• Lighting (cab lights often run 24/7)
• Ventilation and climate control
• Standby power for controls and displays

Energy-Saving Modernization Options

Regenerative Drives

The biggest energy saver available. Regenerative drives capture energy when the elevator descends with a heavy load or rises with a light load - situations where the motor acts as a brake. This energy is converted back to electricity and returned to the building grid.

• Can reduce motor energy consumption by 25-40%
• Pays for itself within 3-7 years depending on usage
• Works best in high-traffic buildings

LED Lighting Upgrades

A simple change with immediate impact:

• LEDs use 75% less energy than incandescent bulbs
• Last 25 times longer, reducing maintenance costs
• Generate less heat, reducing cooling needs
• Motion sensors can dim lights when cab is empty

Variable Frequency Drives (VFDs)

If your elevator does not already have a VFD, this upgrade alone can transform energy efficiency:

• Precisely controls motor speed rather than running full power
• Reduces energy consumption by 30-50% for older systems
• Provides smoother starts and stops, improving ride quality
• Extends motor life by reducing mechanical stress

Standby Mode Technology

Modern controllers can put elevators in sleep mode during low-traffic periods:

• Shuts down cab lighting and ventilation
• Reduces controller power consumption
• Instantly wakes when a call is registered
• Particularly effective for buildings with overnight low usage

Machine Room-Less (MRL) Conversions

For major modernizations, MRL systems offer significant advantages:

• Gearless motors are inherently more efficient
• Eliminates energy-intensive machine room cooling
• Smaller motors mean lower power requirements
• Frees up valuable machine room space

Real Savings for South Florida Buildings

In our hot climate, energy efficiency matters even more. Reducing elevator heat output means less strain on your HVAC system. A comprehensive elevator modernization can reduce overall building energy costs by 2-5%.

Incentives and Rebates

Many utility companies offer rebates for energy-efficient upgrades. We can help you identify available incentives and ensure your project qualifies.

Interested in a green elevator upgrade? Call Brouss at 786.308.9128 for a free energy assessment. We will show you exactly what is possible for your building.